Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
08/2011
08/10/2011EP2355292A2 Power supply system, electronic apparatus, and method for controlling power supply system
08/10/2011EP2355170A2 Control for photovoltaic systems
08/10/2011EP2354864A1 Method and system for an optimized utilization of energy resources of an electrical system
08/10/2011EP1954560B1 Method for supplying the electrical on-board power network of ships with external energy
08/10/2011EP1891724B1 Grid responsive control device
08/10/2011CN201928233U 提升机交流双控高压矩阵变频电控系统 Hoist dual control high voltage AC variable frequency electric control system matrix
08/10/2011CN201928204U 大型光伏并网发电站用智能逆变器 Large-scale photovoltaic power plants with a smart grid inverter
08/10/2011CN201928188U 具有抗电磁干扰的变频器 Drive with anti-electromagnetic interference
08/10/2011CN201928042U 微机型高频开关整流逆变设备 Microprocessor-based high-frequency switching rectifier inverter equipment
08/10/2011CN201928036U Schedulable-type photovoltaic power-generating grid-connected power station
08/10/2011CN201928035U 一种高压直挂式svg综合控制装置 A high-pressure svg tag through integrated control device
08/10/2011CN201928034U 电容投切开关 Capacitor switching switch
08/10/2011CN201928033U 一种升压变压器低压侧自动补偿装置 A boost transformer low voltage side of the automatic compensation device
08/10/2011CN201928032U 一种动态svc补偿控制系统 A dynamic svc compensation control system
08/10/2011CN201928031U 一种用于控制三相电力电容器投切的同步开关 A method of controlling a three-phase synchronous electric power capacitor switching switch for
08/10/2011CN201928030U 一种矿热炉低压侧真空补偿装置 One kind of low-pressure side of the vacuum arc furnace compensation device
08/10/2011CN201928029U Comprehensive assessment system for stability of static voltage
08/10/2011CN201928028U 一种空气净化节电器 An air purifier Saver
08/10/2011CN201928027U 高压电动节电设备 High-voltage electric power-saving device
08/10/2011CN201928026U 有源电力滤波器用同步数据采集电路 Active power filter with synchronous data acquisition circuit
08/10/2011CN201928025U 智能通用节电器 Smart Universal Power Saver
08/10/2011CN201928024U 冶炼炉节电器 Smelting furnace Saver
08/10/2011CN201928023U 全电力推进船舶嵌入式电站监控装置 Electric Propulsion Ship embedded power monitoring device
08/10/2011CN201928022U 风电功率预测系统 Wind power prediction system
08/10/2011CN201927999U 晶闸管无功补偿缺相保护系统 Thyristor reactive power compensation phase protection systems
08/10/2011CN201925819U Efficient and energy-saving LED illuminator capable of optimizing AVC (automatic voltage control) system of power system
08/10/2011CN102150318A Secondary battery power control method
08/10/2011CN102150317A Method for controlling sodium-sulfur battery
08/10/2011CN102150316A Lead storage battery operating method and electrical storage device equipped with lead storage battery operated by this operating method
08/10/2011CN102148864A Photovoltaic generation and large public building integration wireless monitoring system
08/10/2011CN102148603A Distinguishing method of initial position zero variation of doubly-fed generator rotor and control device thereof
08/10/2011CN102148580A Deadbeat current control method for adding zero vector for grid-connected inverter
08/10/2011CN102148533A Manpower smart grid
08/10/2011CN102148509A Grid-connected inverter for optimizing minimum unit of solar cell
08/10/2011CN102148508A Application of power combination technology based on phase shift pulse-width modulation (PMW) control policy in photovoltaic grid-connected system
08/10/2011CN102148507A Photovoltaic grid-connected inverter MPPT (Maximum Power Point Tracking) system based on admittance optimization algorithm
08/10/2011CN102148506A Reactive control system for intelligent power distribution lines
08/10/2011CN102148505A Reactive compensation controller
08/10/2011CN102148504A Low-harmonic power supply quality control system and method
08/10/2011CN102148503A Automatic adjusting and controlling device for electricity energy quality
08/10/2011CN102148502A Single machine alone net self-excitation judging method
08/10/2011CN102148501A Disturbance generation device for wind power station
08/10/2011CN102148497A Optimal configuration method of series reactor for limiting short-circuit current
08/10/2011CN102147593A Flow self-definition configuration method for safe and stable multi-algorithm packaging of power system
08/10/2011CN101710703B Static optimization method of power gathering and output electric capacity of wind power station group
08/10/2011CN101662148B Voltage initial value setting method of load flow calculation with rectangular coordinate newton method
08/10/2011CN101635460B Control method of comprehensive compensation system of negative sequence and harmonic in high-speed electric railway
08/10/2011CN101635459B Switch for the access of single phase wire
08/10/2011CN101599710B Monopole inverter capable of boosting voltage
08/10/2011CN101390267B Control of power flow in a transmission line
08/10/2011CN101316074B Back-to-back three-power level midpoint clamping current transformer of wind power generation system
08/10/2011CN101297457B A converter
08/09/2011US7996116 Method of determining voltage stability margin for load shedding within an electrical power system
08/09/2011US7994658 Windfarm collector system loss optimization
08/09/2011US7994654 Wireless-controlled power-saving apparatus
08/09/2011US7994653 Pluggable power management module for a power distribution panel
08/09/2011CA2539355C Method for operating a frequency converter of a generator
08/05/2011WO2010088663A1 Energy delivery control systems and methods
08/05/2011CA2788839A1 Energy delivery control systems and methods
08/04/2011WO2011094414A2 Advanced topologies for offshore power systems
08/04/2011WO2011093419A1 Power supply method, computer-readable recording medium, and power generation system
08/04/2011WO2011093362A1 Power supply method, computer readable recording medium, and power generation system
08/04/2011WO2011093277A1 Power management device and power management method, as well as power management system provided with power management device, house provided with power management system, program for power management device, and computer readable recording medium
08/04/2011WO2011093194A1 Electric power consumption control system
08/04/2011WO2011093109A1 Dispersed-type power generation system
08/04/2011WO2011092265A2 Power flow measurement and management
08/04/2011WO2011091857A1 Operation of an electrical energy supply network
08/04/2011WO2011073475A3 Harmonisation and modulation system for electricity from unmanageable energy sources
08/04/2011US20110190958 Grid responsive control device
08/04/2011US20110187201 Method and apparatus for resistive power distribution
08/04/2011US20110187200 Anti-islanding for grid-tie inverter using covariance estimation and logic decision maker
08/04/2011US20110187193 Power distribution unit and power management architecture employing the same
08/04/2011US20110187187 Connection module for providing n+n and m+1 redundant power distribution
08/04/2011US20110187186 Universal single-stage power converter with pfc capability
08/04/2011DE102010006527A1 Anpassen von Lastprofilen und/oder Einspeiseprofilen Customize load profiles and / or Einspeiseprofilen
08/04/2011DE102010006142A1 Energy portal for controlling and/or regulating energy supply in power distribution network of wind power plant, has control device controlling and/or regulating parameters as variables based on variables, factors and information
08/04/2011CA2788055A1 Distributed power generation system
08/04/2011CA2786242A1 Minimizing circulating current using time-aligned data
08/03/2011EP2352215A1 Secondary battery system
08/03/2011EP2352214A1 Output power control apparatus
08/03/2011EP2351204A2 Device for regulating a double-fed asynchronous machine
08/03/2011EP2351189A2 Frequency responsive charge sustaining control of electricity storage systems for ancillary services on an electrical power grid
08/03/2011EP2351180A1 System and method for connecting a converter to a utility grid
08/03/2011EP2351179A1 Improved dc bus regulator
08/03/2011EP2351178A1 Smart responsive electrical load
08/03/2011EP2350374A1 Electric appliance with energy monitoring and managing means and corresponding method
08/03/2011EP1751839B1 Low loss propulsion system
08/03/2011EP1490701B1 Method for controlling an electrical network comprising determining a negative sequence component
08/03/2011CN201918989U 电力线通信信号隔离及耦合装置 Communications signal isolation and coupling device
08/03/2011CN201918938U 一种高压电动机液态增容软起动装置 A high-pressure liquid Capacity soft starter motor
08/03/2011CN201918749U 微机型交直流一体化电源设备 Microprocessor-based AC-DC integrated power supply
08/03/2011CN201918743U Control system of double-fed wind generating set
08/03/2011CN201918742U 全功率整流风力发电机组变频器逆变控制装置 Full power rectifier inverter wind turbine inverter control device
08/03/2011CN201918741U 太阳能光伏发电系统 Solar photovoltaic systems
08/03/2011CN201918740U 一种轮胎吊转场控制系统 A tire hanging transition control system
08/03/2011CN201918739U 储能型水泵节电控制装置 Storage-type water pump power control device
08/03/2011CN201918738U 66千伏串联补偿装置 66 kV series compensation devices
08/03/2011CN201918737U 箱式磁控动态无功补偿装置 Box magnetron dynamic reactive power compensation device
08/03/2011CN201918736U 高压电力电容器 HV power capacitors
08/03/2011CN201918735U 一种动态无功补偿控制电路 A dynamic reactive power compensation control circuit